YP Sport Pouch - Set of 4 Reusable - YP Sport pouches can be filled over and over with healthy blended beverages Freezer safe for frozen blended snacks or smoothies Dishwasher safe - Simply rinse with warm water, expand the pouch and stand upside down in the dishwasher Easy to fill - Pour or spoon in fitness liquids though the wide top zipper opening Holds up to 10 ounces, BPA free, PVC free and phthalate free